for an online calendaring website we offer our visitors to "Subscribe to the calendar" using their native Calendar app.
On iOS, this is pretty easy, as iOS recognises the iCal format, and everything is handled perfectly.
On Android however, the iCal/webcal file is downloaded, and thus not kept in sync with any changes.
We'd like to offer a solution to Android visitors which is just as easy as on the iOS platform. When a user clicks the "Subscribe" link on the webpage, it should open up the native Calendar app, which in turn registers the subscription to the ical, and keeps all events in sync.
Any help is much appreciated.